Oil burner



July 24, 1928.

1,678,314 A. H. BElRNEs OIL BURNER Filed Oct. 16, 1925 Patented July 24, 1928.

UNITED lsrA-'ras"ea'frlaisl"r OFFICE.

ALFRED H. BEIRNES, or WINNIEG, nNr'oBA, CANADA.

oII. BURNER f aiipiicafibn met ctober 16.1926, serial rfffmzlozl.

The` invention relates to improvements .in oil burners and an, object of the invention is to ,provide an oil burner which can beused in all kinds of heaters `such as furnaces,v

stoves', khot Waterboilers andv the like land which kcomprises comparatively few partsy which can lbe readily constructed and v installed and which when in operation ehem. y tively mixes fuel oil and air to produce an 0 intensek flame of great volume. i

`A further-object of `the invention isto j constructthe burner so .that the oil/f fed theretocan be initially quickly vaporized and subsequently mixed'vwith air inamixing chamberk yprovided tolfijmpan initial mixture and further to arrange vlthestructure suchthat yfurther airis miXedwith-the said mixture *to forniv alinal gas which .is burnt. y

f A further object of the invention is to con- 201str'u`ct the burner so that the-.outlet for the gas to the furnace `fire pot-cany beregulated to best `accomn'iodate the burner tothe Vparticular draft of the furnace or the likein` which it4 is installed. l

A further object is to provide ar burner having means for returning any overflow of oil to a suitable point of discharge and where it can be readily collected..

lVith the above more important ob'jectsfin view, the inventionconsistsessentially inthe.

- arrangement and; 'construction of parts `here- `inafter more particularly. described, referf ence being` had t'o the accompanying draw-' ing, in whic'hr-4 Fig. 1 is a vertical sectional view through my device as it appears mounted on the fun nace grate and within the lire pct.l I

Fig'. 2 is a plan view of the bowl.

Fig'. 3 is an enlarged detailed vertical sectional view through a. portion of the upper end of the cone andthe adjacent portion of the bowl. f f .n

Fig'. l is' aperspective view of a portion of the cross bar of the casing.

figures. Y K

V{As-before intimated;` this burner" can be' utilized in all types of heat-ersandrIllavey hereinshown it as 'mounted inthe Ordin-ery type of household(,furnace which presents Inthedrawing like characters of .referenceV indicate corresponding 'part-sin the several Y `of the bowl is providedwith .a frusto-conical .shaped .bossor `facial extension 18,` the purgratetli, fire pot .2J andv ash pit i3, `such partsbjeing not herein detailed. as their ccnstruction `is well known to one familiar with the art.

-`Onthe grate I place an annular row of `fire bricks and the `space between lthe bricks.Y and the wall of' the fire `pot is filled in in, any Asuitable manner vto f prevent the Y escapeof air 1as by,employingcenrent. The o0 bricks form a supportl forthe casing `of my .burner which is thus eleyated above` the grate. The casing` has tlielower partthere- `of cylindrical andV the upper end rthereof .further vpipes .'13 'which pass to the exterior of the furnace in anyd'suitablelmanner such suV asbypassing down through the grateand` loutthroughthe ash door, ofthea'shbox 3. Fuel oilisfed throughthe latter pipes to theinterior ofthe bowh i The top of the bowl is provided with an upstanding `marginal flange. or. rib r 14 which forms a Apan l5f for, the reception ofl oil or other material...whichcan be ignited yfor initially heating theburner parts.` "Anumber ofradially disposed ribs 16, are .integrally v cast on tlietop. of the bowl andby prodding vthese `with asV poker or a similar toolone `can turn the bowl and so adjust its vertical pcsition in relation to the in-ilaring upper end of the casing, being remembered that the "bowl isscrew threaded ontocthe lower end ofthe pipe Qt A .lock inutfl isprovided for locking` the bowl in anyadjusted position on the pipe. Centrally the underface pose which willbe` later described. p

1 (lll the upper end of the cone.

Y nace, Vthe bowl is set in regard to tlieiu-` his cup in a comparatively ,narrow cavity appearing between comparativelyy thick walls. An overflow pipev 24e 4leads from the channel 20 to the exterior of the furnace.

The bowl has the wall thereof curved as shown in Figure 1 and it will be readily seen that when the bowl is adjusted up or down on the pipe 9, the vertical distance between the Abowl and the iii-flaring upper end of the casing Awill be diminished or increased, thusr controlling the draft.

When the burner is to beplaced in a furflariiig upper end of the casing yto' best vaccommodate the draft conditions ofsuch furnace and it isthen locked in place by the nut. The cone is mounted onthe' grate so that Vit will then tal-re a position in relationrv to the top of the bowl' such as shown so that therewill be a comparatively thin flow of oil in the pocket.

One starts the burner by putting oil7 waste lor Aother material which -can be initially "burnt into the pan l5. As such ignited ina' teiial burns,y it heats the adjoining portions of the burner and particularly the comparatively thick walls of the bowl top and the cone top. I/Vhen these parts haver become intensely hot, one permits oil fuel vto pass through the pipes 13 and 9 into the cup and this oil fuel entering the cup willbecome im-'v inedia'tely' gasilied and will pass out of rthe cup into the bowl, theinteiiorlfpof the bowlV being at such time filled with air admitted through the grate. n

The 'bowl in this way forms a mixing chamber for the gas and air and the mixture flows outwardly around the lower Ledge of the bowl and up into the annular passage 25 between the bowl and the casingand there mixes with further air passing up between the bowl and the casing. This final mixture is lit and burns with an intense annu-g lar flame which appears in the annular space 25 and appears also at the top ofthe casing.

The heat developed by the burner after it has been going a short time, edectivelygasines the oil feeding into the cup from the feed pipe. l"

I wish here to point out that the lower end of the bowl'is contracted and this causes a building up of pressure in thelmixture It will be observed that the fuel oil admitted through the pipe 9, is fed, directly into the cup and is retained in` within the bowl so that it is forced out under pressure to flow around the bottom of the bowl and up into the passage 25.

lVhat I claim as my invention is 1. rlhe combination with a supporting grate, of a casing mounted onthe grate and having the upper and lower ends thereof open and the upper end inwardly liaring, an inverted bowl suspended-for vertical adjustment within the casing and underlying the inwardly iiaring' upper end of the casing, said bowl forming an internal mixing chamber and an exterior annularjpassage between vthe bowl and the casing, a cone shaped niembermouiitedcentrally on the grate and ex tending upwardly within the bowl and provided at'the upper end with an oil receiving cup centrally underlying lthe closed rupper end of the bowl and a feed pipefor fuel oilv ypassing through the closed upper endof the y bowl and delivering intothecup.- f

` f2. The combination with a supporting grate, of a' casing mounted on the grate and grate and extending upwardly within the bowl and provided at the upper end with an oil receiving cup centrally underlying the closed upper end of the bowl, a feed pipe rfor fuel oil passing` ythrough the closed upper end ofthe bowl and delivering into the cup, a channel locatedonthe base of the vcone and a drip pipe leadingfrom the channel. y

'3. The combination with Y a supporting grat-ev, of a casing mounted on the grat-e and having the Aupper and lower ends thereof open and the upper end of the casing inwardly flared and provided with faf centrally located" cross bar, ar vertically disposed oil `having the upper and lower" ends thereofr` yopen and the upper end inwardly Haring,

feed pipe carried centrally by'thecross bar and entering the casing, an inverted bowl mounted -on the lower end ofthe "pipe and underlying the flaring end of thecasing and providing an interior mixing chamber with` in the bowl and an exterior annular passage between the bowl and the casing, a f cone mounted centrally on the gratevand extendfing` upwardly within the bowliand provided atthe upper end with a cup centrally underlying tlie closed end'ofthe bowl and adapt ed to receive oilfronithe 4feed pipe and at thev lower end with a circumscribing drip channel and a dripepipe leading from the channel. l f e 4; The combination with a supporting grate, of a casing carriedby the grate and ,having the upper and lower ends thereof yopen andthe uppery end inwardly iared, a

suitably supported oil feed pipe extending` downwardly within the casing, any inverted bowl adjustably mounted on the lower end of the feed pipe and contained within the' casing and providing within the bowl a mixing chamber and between the bowl and the casing, nn'annular passage, said bowl underlying the flaring upper end of the oasing and having the closed end thereofy presenting an oil pan and provided with an inwardly extending boss on the inner side surrounding the oil pipe7 a cone mounted centrally on the grate and extending up` wardly within the bowl, said cone being provided at the lower end with an oil receiving 15 channel and nt the upper end with an oil receiving cup receiving the boss aforesaid and a drip pipe leading from the channel.

Signed at lvinnipeg, this lst day of October, 1926.

ALFRED H. BEIRNES. 

